2Chauncy Harris 1914-2003 Born in Utah Received a B.A. from Brigham Young University in 1933Graduated as ValedictorianRhodes ScholarOxford UniversityFirst rhodes scholar at BYUreceived second BA and Masters at Oxford
3Edward Ullman 1912-1976 University of Chicago, University of WashingtonEconomist for the United States Maritime CommissionResearch professor at Sapienza University of Rome
4Multiple Nuclei Theory Developed in the 1945’sHarris and Ullman made the argument that the “city's downtown core” was losing its importance in relation to the rest of the cityA cities structure is made up of more than one node, or center in which the cities people and activities revolve around.Developed in 1945explains the changing growth pattern of urban spaces based on the assumption that growth occurred independently around several major foci (focal nodes), many of which are far away from the central business district and only marginally connected to itthe automobile became increasingly important because it allowed greater movement for residents to the suburbs
5Let’s Compare!In contrast to the Concentric and Zone Models, both of which involve a single center, this theory argues that multiple centers of urban activity and sociology arise as a result of ethnic, cultural, business, educational, and other influences.
6Multiple Nuclei Theory Example: Consider the greater New Haven area. The center of New Haven is dominated by a large university, while Bridgeport is built around a port, and North Haven is a focus of light industry. Other nuclei exist within the region, centered around shopping, recreation, and ethnic communities.